National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Pease Air Force Base / Portsmouth (KPSM)

Lat: 43.08°NLon: 70.82°WElev: 102ft.

Overcast

29°F

-2°C

Humidity 72%
Wind Speed Calm
Barometer 29.70 in (1006.1 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 10 Dec 8:55 am EST
Extended Forecast for

New Castle NH

  • Today

    Today: Rain likely, mainly after 5pm. Mostly cloudy, with a high near 45. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Slight Chance
    Rain then
    Rain Likely

  • Tonight

    Tonight: Rain likely, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 30. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 30 °F

    Rain Likely
    then Mostly
    Cloudy

  • Thursday

    Thursday: Isolated showers between noon and 3pm. Mostly sunny, with a high near 38. Breezy, with a west wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 20%.

    High: 38 °F

    Mostly Sunny
    then Isolated
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 19. Breezy, with a west wind 15 to 20 mph, with gusts as high as 40 mph.

    Low: 19 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 32. West wind around 15 mph, with gusts as high as 30 mph.

    High: 32 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 21.

    Low: 21 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of snow after 8am. Mostly cloudy, with a high near 33.

    High: 33 °F

    Chance Snow

Detailed Forecast

Today
Rain likely, mainly after 5pm. Mostly cloudy, with a high near 45. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain likely, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 30. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Isolated showers between noon and 3pm. Mostly sunny, with a high near 38. Breezy, with a west wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 19. Breezy, with a west wind 15 to 20 mph, with gusts as high as 40 mph.
Friday
Sunny, with a high near 32. West wind around 15 mph, with gusts as high as 30 mph.
Friday Night
Mostly clear, with a low around 21.
Saturday
Partly sunny, with a high near 35.
Saturday Night
Mostly cloudy, with a low around 23.
Sunday
A 30 percent chance of snow after 8am. Mostly cloudy, with a high near 33.
Sunday Night
Partly cloudy, with a low around 15.
Monday
Sunny, with a high near 27.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
Mostly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New Castle NH
 43.04°N 70.72°W (Elev. 3 ft)
Last Update:
7:57 am EST Dec 10, 2025
Forecast Valid:
9am EST Dec 10, 2025-6pm EST Dec 16, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation